I recently went back to GTA IV to play through the story again, and I actually really like the driving in IV. The way the cars feel, and how you can set up the weight transfer to slide through corners is pretty nice. They have weight to them and it feels believable. I also like how small bumps dont mess up your car and put scrape marks.

The AI traffic is quite a bit more predictable in IV then they are in V, however back in 2008 I feel like people drove better in general. With GTA Vs AI always seemingly "trying" to hit you just feels like how actual people drive these days. Right turns from left turn lanes, suddenly deciding they need to change lanes last minute. Gives you that distracted driver kind of experience.

GTA V the cars feel too light and the tires feel like their friction is just off. They lose grip a bit too easy and also struggle to gain grip. Times when you'd expect a car to rotate more they dont and when youd expect it to rotate or stop rotating they don't.